An active tunable terahertz functional metamaterial based on hybrid-graphene vanadium dioxide

H Qi, B Tang - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
In this paper, we propose a switchable and tunable functional metamaterial device based on
hybrid graphene–vanadium dioxide (VO2). Using the properties of the metal-insulator …

Recent advances in generation of terahertz vortex beams and their applications

H Wang, Q Song, Y Cai, Q Lin, X Lu… - Chinese …, 2020 - iopscience.iop.org
Last decade has witnessed a rapid development of the generation of terahertz (THz) vortex
beams as well as their wide applications, mainly due to their unique combination …

Joint multi‐frequency beam sha** and steering via space–time‐coding digital metasurfaces

G Castaldi, L Zhang, M Moccia… - Advanced Functional …, 2021 - Wiley Online Library
Digital programmable metasurfaces provide a very powerful and versatile platform for
implementing spatio‐temporal modulation schemes that are of great interest within the …

Terahertz smart dynamic and active functional electromagnetic metasurfaces and their applications

Z Yaxin, Z Hongxin, K Wei, W Lan… - … of the Royal …, 2020 - royalsocietypublishing.org
The demand for smart and multi-functional applications in the terahertz (THz) frequency
band, such as for communication, imaging, spectroscopy, sensing and THz integrated …

[HTML][HTML] Switchable and simultaneous spatiotemporal analog computing with computational graphene-based multilayers

A Momeni, K Rouhi, R Fleury - Carbon, 2022 - Elsevier
In the past few years, analog computing has experienced rapid development but mostly for a
single function. Motivated by parallel space-time computing and miniaturization, we show …

Broadband and high-efficiency thermal switchable InSb metasurface for terahertz wave anomalous reflection and focusing effect

C Ni, L Dong, Z Xu, M Wang, L Wu, Y Cheng - Materials Today …, 2023 - Elsevier
In this paper, a reflective metasurface composed of a dielectric substrate sandwiched with a
double-split-ring (DSR) structure InSb and a metal ground plane was proposed in terahertz …

Multi-channel near-field terahertz communications using reprogrammable graphene-based digital metasurface

K Rouhi, SE Hosseininejad, S Abadal… - Journal of lightwave …, 2021 - opg.optica.org
Digital metasurfaces have opened unprecedented ways to accomplish novel
electromagnetic devices thanks to their simple manipulation of electromagnetic waves …

High-efficiency and tunable circular dichroism in chiral graphene metasurface

Y Cui, X Wang, H Jiang, Y Jiang - Journal of Physics D: Applied …, 2021 - iopscience.iop.org
Circular dichroism (CD) response is extremely important for dynamic polarization control,
chiral molecular sensing and imaging, etc. Here, we numerically demonstrated high …

Real-time terahertz meta-cryptography using polarization-multiplexed graphene-based computer-generated holograms

H Rajabalipanah, K Rouhi, A Abdolali, S Iqbal… - …, 2020 - degruyter.com
As one of the cutting-edge technologies in advanced information science, wave-based
cryptography is a prerequisite to enable a plethora of secure encrypting platforms which can …

Programmable manipulation of terahertz beams by hybrid graphene-metal coding metasurfaces

X Wang, X He, J Jiang, Y Yao, G Lu - Diamond and Related Materials, 2022 - Elsevier
Recently, traditional tunable coding metasurfaces integrated with active components or
materials have exhibited not only many functionalities, but also reconfigurable responses …